Make FULLNONCE an ULL to fix a warning on 32 bit.
Fix warnings in avalon driver.
Don't use TCP_NODELAY if opt_delaynet is enabled with stratum.
Sacrifice curl handle memory on stratum disconnects on all versions of libcurl to avoid curl corruption.
Use raw sockets without curl for stratum communications.
Free servinfo after p is checked in setup stratum socket.
Change verbosity and error for getaddrinfo warnings in setup stratum socket.
Recv() should all be non-blocking for raw sockets in stratum.